Products > Power Supplies > AD737JN

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RMS to DC Converter -3.4V 210uA 190kHz/460kHz

  • Package/Case :
  • DIP-8
  • Product Categories :
  • PMIC - RMS to DC Converters
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 410


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AD737JN Product Details

The AD737JN computes the rms value of both the ac and dc input voltages, and is ac-coupled by adding an input capacitor. In this mode, the AD737JN can resolve input signal levels of 100 μV rms or less, despite variations in temperature or supply voltage. High accuracy is maintained for input waveforms with crest factors of 1 to 3 and crest factors at 2.5% or less with respect to full-scale input level.

The AD737JN has no output buffer amplifier, thereby significantly reducing dc offset errors occurring at the output, which makes the device highly compatible with high input impedance ADCs.

Requiring only 160 μA of power supply current, the AD737JN is optimized for use in portable multimeters and other battery-powered applications. In power-down mode, the standby supply current in is typically 25 μA.

The AD737JN has both high (1012 Ω) and low impedance input options. The high-Z FET input connects high source impedance input attenuators, and a low impedance (8 kΩ) input accepts rms voltages of up to 0.9 V while operating from the minimum power supply voltage of ±2.5 V. The two inputs can be used either single ended or differentially.

The AD737JN achieves 1% of reading error bandwidth, exceeding 10 kHz for input amplitudes from 20 mV rms to 200 mV rms, while consuming only 0.72 mW.

The AD737JN is available in two performance grades. The AD737J and AD737K grades operate over the commercial temperature range of 0°C to 70°C. The AD737JR-5 is tested with supply voltages of ±2.5 V dc. The AD737A grade operates over the industrial temperature range of −40°C to +85°C. The AD737JN is available in two low cost, 8-lead packages: PDIP and SOIC_N.

Product Highlights

  • Computes average rectified, absolute, or true rms value of a signal regardless of waveform.
  • Only one external component, an averaging capacitor, is required for the AD737JN to perform true rms measurement.
  • The standby power consumption of 125 μW makes the AD737JN suitable for battery-powered applications.
  • Feature

    • ComputesTrue rms value Average rectified value Absolute value 
    • 200 mV full-scale input range (larger inputs with input attenuator) 
    • Direct interfacing with 3½ digit CMOS analog-to-digital (ADCs) 
    • High input impedance: 1012 Ω 
    • Low input bias current: 25 pA maximum 
    • High accuracy: ±0.2 mV ± 0.3% of reading 
    • RMS conversion with signal crest factors up to 5 
    • Wide power supply range: ±2.8 V, −3.2 V to ±16.5 V
    • Low power: 25 μA (typical) standby current
    • No external trims needed for specified accuracy
    • The AD737 output is negative-going; theis a positive output-going version of the same basic device

    AD737JN Pinout
    (Picture: Pinout)

    AD737JN Block Diagram
    (Picture: Diagram)

    Technical Parameters

    • BW 3 dBtyp | Hz
    • 460k
    • Vin rmsmax | V rms
    • 1
    • Crest Factor Error @ CF=3
    • 0.7
    • Total Error
    • ±0.2 ±0.2 (mV±% of rdg)
    • Voutmax | V
    • 5
    • dB Output
    • No
    • Istyp | A
    • 170µ
    • Vs spanmin | V
    • 5
    • Vs spanmax | V
    • 33

    AD737JN Documents

    • AD737 Technical Documentation/Data sheet

    AD737JN Related Products

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    Shipping More
    Estimated Delivery Time: Oct 24 - Oct 29 days (choose Expedited at checkout).

    Shipping & Payment


    • Shipping Type
    • Ship Fee
    • Lead Time
    • $20.00-$40.00 (0.50 KG)
    • 2-5 days
    • $20.00-$40.00 (0.50 KG)
    • 3-7 days
    • $20.00-$45.00 (0.50 KG)
    • 2-5 days
    • $25.00-$65.00 (0.50 KG)
    • 2-5 days
    • $25.00-$45.00 (0.50 KG)
    • 5-14 days
    • $2.00-$3.00 (0.10 KG)
    • 7-30 days

    Processing Time:Shipping fee depend on different zone and country.


    • Terms of payment
    • Hand Fee
    • Payment Site
    • charge US$30.00 banking fee.
    • charge 4.0% service fee.
    • charge 3.5% service fee.
    • charge US$0.00 banking fee.
    • charge US$0.00 banking fee.

    We provide high quality products, thoughtful service and after sale guarantee

    • We have rich products, can meet your various needs.

      We have rich products, can meet your various needs.

    • Minimum order quantity starts from 1pcs.

      Minimum order quantity starts from 1pcs.

    • Lowest international shipping fee starts from US$2.00.

      Lowest international shipping fee starts from US$2.00.

    • 90 days quality guarantee for all products.

      90 days quality guarantee for all products.


    • Step1:Product

      Step1: Products

    • Step2:Vacuum packaging

      Step2: Vacuum Packaging

    • Step3:Anti-static bag

      Step3: Anti-Static Bag

    • Step4:Individual packaging

      Step4: Individual Packaging

    • Step5:Packaging boxes

      Step5: Packaging Boxes

    • Step6:bar-code shipping tag

      Step6: Bar-Code Shipping Tag

    All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

    Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

    We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

    After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

    Jotrin ESD packing


    1.We provide 90 days warranty.

    2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


    Q: How does Jotrin guarantee that AD737JN is the original manufacturer or agent of AD?
    We have a professional business development department to strictly test and verify the qualifications of AD original manufacturers and agents. All AD suppliers must pass the qualification review before they can publish their AD737JN devices; we pay more attention to the channels and quality of AD737JN products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
    Q: How to find the detailed information of AD737JN chips? Including AD original factory information, PMIC - RMS to DC Converters application, AD737JN pictures?
    You can use Jotrin's intelligent search engine, or filter by Analog Functions ; RMS to DC Converters category, or find it through Analog Devices, Inc Information page.
    Q: Are the AD's AD737JN price and stock displayed on the platform accurate?
    The AD's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for AD737JN, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
    Q: Can I place an order offline?
    Yes. We accept offline orders.
    We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
    Q: What forms of payment can I use in Jotrin?
    TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
    Q: How is the shipping arranged and track my package?
    Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
    Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
    Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
    Q: What is the process for returns or replacement of AD737JN?
    All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AD737JN we delivered, we will accept the replacement or return of the AD737JN only when all of the below conditions are fulfilled:
    (1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
    (2)We are informed of the defect described above within 90 days after the delivery of AD737JN.
    (3)The AD737JN is unused and only in the original unpacked packaging.
    Two processes to return the products:
    (1)Inform us within 90 days
    (2)Obtain Requesting Return Authorizations
    More details about return electronic components please see our Return & Change Policy.
    Q: How to contact us and get support, such as AD737JN datasheet pdf, AD737 pin diagram?
    Need any After-Sales service, please feel free contact us:

    Analog Devices, Inc

    Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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